Display screen with a user interface



FIG. 1 is a front view of a display screen with a user interface showingour new design; and,

FIG. 2 is a front view of an alternate embodiment of a display screenwith a user interface showing our new design.

The broken line showing of the display screen is for environmentalpurposes only and forms no part of the claimed design.

The ornamental design for a display screen with a user interface, asshown and described.